Wang Xinling plays a high school freshman named Tao Hua, who is skilled in judo and playing the piano. She is innocent and cute, the youngest among the six siblings of the Tanaka family and the only girl. Tao Hua falls in love with Shi Lang (played by Wang Dongcheng), a student at Tama First High School. Shi Lang is reserved, academically excellent, and also skilled in judo. Regarding Tao Hua's first love, her four brothers, who have severe younger sister complexes (played by Zhu Xiaotian), constantly obstruct their relationship. The fifth brother (played by Huang Jinglun) is responsible for monitoring Tao Hua at school, so he was forced to give up his first choice university and instead attend Tama High School. Shi Lang's childhood friend, Tongzi (played by Li Jiaying), wants to take Shi Lang away from Tao Hua. The judo club president (played by Chen Yiru), who falls in love with Tao Hua at first sight, pursues her. Despite all the obstacles, Tao Hua is determined to fight for her love with Shi Lang.
Tao Hua is a special girl and a well-known figure in the Spring Wind Town, but her uniqueness doesn't come from herself but from her four handsome brothers. These four brothers' excessive care, indulgence, and over-protection towards Tao Hua are beyond normal people's imagination. Besides giving her endless care and round-the-clock protection, they even conducted a thorough investigation into the backgrounds of all boys within a certain radius around the Chen family that Tao Hua might encounter. On the surface, all these actions are aimed at finding a boy worthy of Tao Hua. In reality, they use these as reasons and excuses, or even leverage, to oppose Tao Hua's romance because they believe no one in this world except them four is qualified to match their beloved younger sister. However, there's always a loophole. During the seventh time Yu Yi, the often bullied and neglected fifth brother, ran away from home to protest unequal treatment, Tao Hua met a boy. He is the only one who meets all the super-perfect conditions set by the four brothers and leaves no room for opposition—a super-perfect boy.